Sea to Summit Comfort Plus Insulated Review

The Sea to Summit Comfort Plus Insulated provides next level comfort and some of the best trail sleep you’ll ever get thanks to its innovative design.

Sea to Summit Comfort Plus Insulated Camping Air Mattress, Large (79 x 25 x 2.5 inches)

Good to know: this sleeping pad is unisex

Pros / Reasons to Buy

  • Exceptional comfort
  • Dual chamber inflation design means adjustments can be made easily for the perfect sleep

Cons / Reasons to Avoid

  • Heavy
  • Doesn’t pack down so small

If comfort is your top priority on the trail, then you will be very happy with the Sea to Summit Comfort Plus Insulated sleeping pad. I found it has offered me next level comfort, especially with joint problems that need extra care and attention whilst sleeping on the trail.

Sea to Summit claim that this sleeping pad is the most awarded of all time, and that aside, I can see why it’s so popular. I’ve found myself reaching for it time and time again and making concessions with other areas of my camping kit just to make this fit. It’s really that good. It’s well featured, warm, comfortable and durable to the next level.

So, if you’re on the fence as to whether the comfort is worth the extra weight or not, read on to find out what makes me sing the praises of this dual chamber, cutting edge sleeping pad so highly.

Compare to similar products: 

Nemo Switchback
Nemo Tensor All-Season
Therm-a-Rest NeoAir Xlite NXT
Therm-a-Rest NeoAir XTherm NXT
Rab Stratosphere 4
Sea to Summit Comfort Plus Insulated
Big Agnes Divide Insulated
Nemo Quasar 3D
Sea to Summit Ether Light XT Insulated
Big Agnes Rapide SL Insulated
Exped Ultra 7R
Klymit Static V
Sleepingo Large
Tame Lands
Therm-A-Rest Z Lite Sol
NEMO Switchback Foam Sleeping Pad - Regular - Sunset Orange
NEMO Tensor All-Season Ultralight Insulated Sleeping Pad, Regular Wide
Therm-a-Rest NeoAir Xlite NXT Ultralight Camping and Backpacking Sleeping Pad, Solar Flare, Regular Wide
Therm-a-Rest NeoAir XTherm NXT Ultralight Camping and Backpacking Sleeping Pad, Neptune, Regular
Rab Stratosphere 4 Lightweight Insulated Sleeping Pad for Camping & Backpacking - Graphene - Regular
Sea to Summit Comfort Plus Insulated Camping Air Mattress, Large (79 x 25 x 2.5 inches)
Big Agnes Divide Insulated | Lightweight, Compact, 3-Season Air Chamber Sleeping Pad, Wide Regular, Warm Olive
NEMO Quasar 3D Lightweight Sleeping Pad - Insulated Regular (72'x20') - Bluebird
Sea to Summit Ether Light XT Extra-Thick Insulated Sleeping Pad, Rectangular - Regular (72 x 25 x 4 inches)
Big Agnes Rapide SL Insulated Sleeping Pad, Regular (20x72)
Exped Ultra 7R | Lightweight Backpacking Mat | Packable and Comfortable | -20 Degree 4-Season Sleeping Pad, Charcoal, Medium
KLYMIT Static V Lightweight Inflatable Sleeping Pad | Comfortable, Lightweight, Easy to Inflate Portable Air Bed Mattress for Camping, Backpacking and Hiking — Orange
Sleepingo Sleeping Pad for Camping - Ultralight Sleeping Mat for Camping, Backpacking, Hiking - Lightweight, Inflatable Air Mattress - Compact Camping Mats for Sleeping- Green, 1pk
Tame Lands Sleeping Pad for Camping Ultralight Backpacking, Sleeping Mat for Hiking, Traveling & Outdoor Activities 17 OZ (Olive Green)
Therm-a-Rest Z Lite Sol Camping and Backpacking Sleeping Pad, Limon/Silver, Regular - 20 x 72 Inches
Buying Options
Our Rating
Best Foam Sleeping Pad
Best Air Sleeping Pad
Best for Comfort and Ultralight
Best for Winter and Best Mummy Shaped Sleeping Pad
Best for Summer
Best for Side Sleepers
Best for Back Sleepers
Best Budget Air Pad
Best Rectangular Sleeping Pad
Type and Shape
Folding, closed-cell foam
Rectangular or Mummy Inflatable
Mummy Inflatable
Mummy Inflatable
Rectangular Inflatable
Mummy Inflatable
Rectangular Inflatable
Rectangular Inflatable
Rectangular or Mummy Inflatable
Rectangular Inflatable
Rectangular or Mummy Inflatable
Rectangular Inflatable
Mummy Inflatable
Rectangular Inflatable
Folding, closed-cell foam
Comfort
Low
Excellent
Excellent
Very Good
Excellent
Excellent
Very Good
Excellent
Excellent
Excellent
Excellent
Good
Average
Average
Low
Warmth/R-Value
Average (R-Value = 2)
Excellent (R-Value = 5.4)
Very Good (R-Value = 4.5)
Excellent (R-Value = 7.3)
Very Good (R-Value = 3.8)
Very Good (R-Value = 4)
Very Good (R-Value = 4)
Low (R-Value = 1.8)
Very Good (R-Value = 3.2)
Very Good (R-Value = 4.8)
Excellent (R-Value = 7)
Low (R-Value = 1.3)
Low - Average (No ASTM FF3340 rated  R-Value, but likely around 2)
Low - Average (No ASTM FF3340 rated  R-Value, but likely around 2)
Average (R-Value = 2)
Weight
Regular Version - 415g/14.5oz 
Regular Version - 522g/1lb 2oz
Regular Version - 368g/13 oz
Regular Version - 453g/1lb
Regular Version - 695g/1lb 9oz
Regular Version - 845g/29.8oz

Regular Version - 652g/23oz
Non-Insulated Regular Version - 650g/1lb 7oz
Mummy Regular - 490g/17.3oz
Regular Version - 510g/18oz

Rectangular Medium Version - 650g/23oz

Regular Version - 530g/18.7oz
408g/14oz
600g/21oz
Regular Version - 410g/14oz
Packed Size
Regular Version - 51x13x14cm/20x5x5.5in
Regular Version - 25.5x10cm/10x4in
Regular Version - 10.4x22.86cm/4.1x9in
Regular Version - 11.3x22.86cm/4.5x9in
Regular Version - 24cmx12cm/9.4inx4.7in
Regular Version - 12x23cm/5x9in
Regular Version - 20x13cm/8x5in
Non-Insulated Regular Version - 20x10cm/8x4in
Mummy Regular - 24x11cm/9.5x4.5in
Regular Version - 18x10cm/7x4in

Rectangular Medium Version - 23x14cm/9x5.5in

Regular Version - 20x8cm/8x3in
27x8cm/10.5x3in
23x10cm/9x4in
Regular Version - 51x13x14cm/20x5x5.5in
Open Size
Regular Version - 183x51x2.3cm/72x20x0.9in
Regular Version - 183x51x9cm/72x20x3.5in
Regular Version - 182x50.8x7.62cm/72x20x3in
Regular Version - 177.8x50.8x7.62cm/72x20x3in
Regular Version - 183x51x8cm/72x20x3in
Regular Version - 184x55cm/72x21.5in
Regular Version - 183x51x8.25cm/72x20x3.25in
Non-Insulated Regular Version - 183x51x9cm/72x20x3.5in
Mummy Regular - 183x55-42x10cm/72x21.5-16.5x4in
Regular Version - 51x183x11cm/20x72x4.25in
Rectangular Medium Version - 183x52x9cm/72x20.4x3.5in

Regular Version - 183x58x6cm/72x23x2.5in
187x54.6x5cm/73.5x21x2in
188x56x5cm/74x22x2in
Regular Version - 183x51x2cm/72x20x0.75in
Materials
Polyethylene foam backed with metalized foil
20D and 40D Nylon with two layers of metalized film
30D Ripstop Nylon
30D and 70D Ripstop Nylon with Thermacapture Reflective Film
75D Polyester with 100% recycled polyester 'Stratus R' insulation
30D/40D Nylon withThermolite insulation and Exkin Platinum film
Ripstop nylon with Thermalite insulaiton and heat-reflecting film  layer
100% Recycled Polyester
30D/40D Nylon withThermolite insulation and Exkin Platinum film
Ripstop nylon with two layers of metalized film
20D Ripstop polyester with down insulation
75D Polyester
Ripstop Nylon
40D Ripstop Nylon
Polyethylene foam backed with Thermacapture Reflective Film
Durability
Excellent - will still work even if torn or damaged
Good - supplied with repair patches
Good - supplied with repair patches
Good - supplied with repair patches
Good - supplied with repair patches
Very Good - supplied with repair patches and spare valve parts
Good - supplied with repair patches
Good - Supplied with repair patches
Very Good - supplied with repair patches and spare valve parts
Good - Supplied with repair patches
Good - Supplied with repair patches
Good - Supplied with repair patches
Good - supplied with repair patches
Good - supplied with repair patches
Excellent - will still work even if torn or damaged

Analysis and Test Results

Sea to Summit Comfort Plus Insulated inflation

When carrying weight isn’t my absolute top priority, the Sea to Summit Comfort Plus Insulated has become my go to sleeping pad for the best, most comfortable sleep on trail I’ve ever had. This sleeping pad lives up to its hype and in all of my tests performed exceptionally well.

One area which does mark this sleeping pad down a little is its weight, for the large, this comes in at 1045g/36.9 oz whereas the regular comes in at 845g/29.8 oz. Though because of how well it performs in terms of comfort, design, useability and thermal resistance, I find myself making exceptions for it – it’s a justifiably exceptional piece of kit.

For the price, I found this to be top end. Compared to some other models at the top of the market in our round up, this sat proudly amongst them and stood up well next to its competition.

Performance Comparison

See our video 360 of the Sea to Summit Comfort Plus Insulated sleeping pad taking into account some of it’s main features: 

Type and Shape

The Sea to Summit Comfort Plus Insulated is an inflating sleeping pad. As it uses a dual chamber system for its inflation (two separate inflating areas that sit next to each other for comfort and insulation) it is pretty unique in our reviews.

It is a mostly rectangular mummy/slight coffin shape. It sits at the premium end of our reviews due to its price point and comes from well-known brand Sea to Summit. It doesn’t fall into the lightweight category so is better suited to hikers who aren’t quite as fixed on breaking down weight as much as possible.

Sea to Summit Comfort Plus Insulated inflating

Comfort

As a preface, I have a health condition that causes me chronic pain – you could liken to something like arthritis. One of my main gripes at times with sleeping pads is that I wake up with the areas that hurt all the time feeling like they hurt a lot more than they should be doing.

I find this especially so if I turn onto my side in my sleep. Getting a good night’s sleep when you’re in pain is never particularly easy, and I found that the Sea to Summit Comfort Plus Insulated was exceptionally comfortable and I woke up in no more pain than I usually do. This is pretty next level for me.

I feel confident in saying that if you struggle with chronic pain, have joint issues or anything similar, you will love this sleeping pad. Likewise, if you’re that bit older and just want to protect your joints more and keep yourself as comfortable as possible, then this is the sleeping pad I’d recommend.

How is all of this possible? This sleeping pad makes use of two separate air chambers which essentially interlock. This is combined with a multi-function valve that on the ground means you can adjust the pressure in the top layer to suit your needs.

This also helps with the ‘squidgy’, ‘squishy’ feeling you often get from sleeping pads when you roll around. Having the bottom layer fully inflated helps to negate any problems caused by rough trails or camping spots. Likewise, this helps too if you do experience a puncture as there is always one side inflated.

I feel that the comfort is an area where the Sea to Summit Comfort Plus Insulated really excels. So much so that the brand claims that currently, this sleeping pad is the most awarded of all time.

Warmth

This sleeping pad uses the brands’ Thermolite and Exkin Platinum for warmth. I also feel like the dual chambers help a lot when it comes to insulation. It’s marketed as 3.5/4 seasons, and suitable for winter camping. To preface, I haven’t had chance to test this in full winter, but in colder temperatures at higher altitudes I have not experienced any complaints in terms of warmth.

I am generally a fairly cold sleeper, and I didn’t feel that this was an issue with this sleeping pad. It has an R-Value of 4, which the brand claims is suitable for all but the coldest ground. From my tests, I would say I’m pretty confident that you would be able to easily use this sleeping pad all year round with no issues at all.

Sea to Summit Comfort Plus Insulated pillow feature

Ease of Use

For my tests, I’ve used the large sleeping pad, and this felt very easy to set up. Though I should preface this by saying that I’ve become used to setting up sleeping pads with a valve inflation system. The Comfort Plus Insulated also comes supplied with a stuff sack that works as an airstream pump. This is great when you’re tired after a long day as you don’t have to worry about becoming out of breath.

I found that it being easy to set up makes all the difference when you’re at altitude and you may feel a little bit more disorientated. I would say that the ease of inflation is generally in line with many of the other top end sleeping pads like in our overall roundup of the best sleeping pads.

Though, one point I should add was that when I first tested out this sleeping pad, I mistakenly just inflated one side. I started to wonder what all the fuss was about. It felt pretty uninspired to be honest. Then I realized there was a second inflation attachment area of the underside.

You may think this should have been obvious given that this is a dual chamber. It just didn’t quite occur to me (user error, tiredness). If you do find yourself in the same situation, the chances are, you just need to inflate the second side. Once I did, I understood the hype.

Another point to add is around the inflation time. Given this is dual chamber, you may be thinking it takes twice as long to inflate as some of the other pads. To be honest, I found that it takes just less than two bags from the pump sack to inflate each side. It takes about the same amount of time as any of the other more robust sleeping pads in our round up (just under 3 minutes).

Real time set up: Our video below shows a real time inflation of the Sea to Summit Comfort Plus Insulated, taking just under 3 minutes in normal conditions. 

Weight

Weight is an area that I do feel a bit of a gripe with the Comfort Plus Insulated sleeping pad. It is heavy – there is no denying that. In fact, it is actually one of the heaviest in our round up on sleeping pads by quite a long stretch (see our comparison table here which compares all the weights of the products we’ve tested next to each other).

I tested the large, which weighs in at 1045g/36.9 oz. The regular weighs in at 845g/29.8 oz. Either way, they’re both heavy. If you’re looking for an ultralightweight sleeping pad that also has a good comfort factor, then you may want to go for something like the Therm-a-Rest NeoAir Xlite NXT.

That said, I feel like I’m happy to give this sleeping pad some slack when I consider how comfortable it feels to use and the level of sleep comfort it offers. So much so, I’m happy to make a few cut backs on other gear in my backpacking pack to keep this with me!

Version
Weight
Regular
845g/29.8 oz
Large
1045g/36.9 oz

Packed Size

This sleeping pad doesn’t pack down particularly small, in fact, it’s one of the largest packed sizes for the large in our overall round up. I personally found that the size coming in at 12x26cm/5×10 inches for the large made it a pretty snug fit with the rest of my camping gear. For some ultralight backpackers, this may be a touch too far when it comes to size.

However, if the packed size isn’t the absolute be all and end all for you, then you will likely find ways to make this sleeping pad fit with the rest of your gear. I really feel like the comfort it offers is worth what it needs adjustment wise to get it sitting well with your other stuff.

One area I did really like is that the inflation sack actually doubles as it’s stuff sack. Most of the other sleeping pads in our reviews have a separate inflation sack, which does bulk things up a bit, so this is a really nice space saving design from Sea to Summit.

Version
Packed size
Regular
11.3 x 22.86cm/4.5 x 9 inches
Regular Wide
12.7 x 27.94cm/5 x 11 inches
Large
12.7 x 27.94cm/5 x 11 inches

Real time pack down: Our video below shows how long it takes to pack down the Sea to Summit Comfort Plus Insulated sleeping pad (around 1 minute 45 seconds) in normal conditions. 

Open Size

I tested the large version of the Comfort Plus Insulated and this is certainly bigger than the regular, in both length and width. The regular comes in at 184 x 55cm/72 x 21.5 inches and the large at 201 x 64cm/79 x 25 inches.

I found it fitted perfectly fine in my 2P MSR Hubba Hubba backpacking tent. As expected, there was more than enough room for another sleeping pad beside me and all my gear to sit in the tent at night.

One of the main reasons I went for the large is because I move around a lot in my sleep and like to know I’m not going to roll off straight onto the floor. If you’re not like me in that regard, then you can likely get by with the regular just fine, unless you need the extra width or height for your frame.

Version
Open Size
Regular
184 x 55cm/72 x 21.5 in
Large
201 x 64cm/79 x 25in
Sea to Summit Comfort Plus Insulated shape and comfort

Features

The Sea to Summit Comfort Plus Insulated is a very well featured sleeping pad, in fact it has won countless awards for all that it offers. I was a little dubious that some of this could just be marketing hype, so I was pleasantly proved wrong when I had some of the best nights of on trail sleep I’ve had on this pad.

One of the features that I couldn’t stop raving about was the dual layer air sprung cells that come as standard on this pad. What this means is that there is a top and bottom section which inflate separately. This allows you to get a really individual feel when it comes to the sleeping firmness. Likewise, when I roll around in the night on this sleeping pad, there is no real change in air pressure which is especially good if you have back or joint problems.

This also helps to increase the durability of this sleeping pad too. As the fact it has two separate inflation areas means that even if you get a puncture, you’re not left without an inflated section.

What’s more, this sleeping pad makes use of Thermolite technology to keep you feeling warm throughout cold nights and with an R-value of 4 makes it perfect for all year round. When you combine everything this pad has to offer, I really feel its most fantastic features offered are it’s comfort. It really is second to none!

I also love the pillow lock points or attachment points. This seems to be a fairly similar situation to the Sea to Summit Ether Light, which we’ve also reviewed. Though this only really works with Sea to Summit’s own brand pillow. As I use a Nemo Fillo Pillow, this was not a feature I could fully test out.

That said, the idea of not having your pillow move around in the night seemed like a good one! This has been some of the main source of neck and back problems I’ve experienced out on the trail, so adjustments to improve this are welcomed. If you’re yet to buy a pillow for your new sleeping pad, I’d recommend looking at Sea to Summit’s offerings that connect up with this pad.  

Materials

The fabrics used for this sleeping pad are a 30D/30D nylon with anti-microbial liquid extruded TPU lamination. What that means in the real world is a really durable sleeping pad that will withstand a lot of pressure even from heavier loads.

Naturally, I always suggest using a liner, Tyvek or similar if you want to sleep outside your tent to keep it abrasion free as much as possible, but if looked after, I’m confident to say the premium materials used here should last a long time. This also isn’t always needed depending on trail conditions.

Sea to Summit Comfort Plus Insulated dual valve

Durability 

Following on from the durable materials used that I’ve mentioned above, this sleeping pad feels really durable and like it really is built to last. Only time will tell if it stands the real test of time, but I’m pretty confident that from my experience of it so far, it will.

One of the main reasons I think this is because of the dual chamber system that is used on this sleeping pad. With most sleeping pads, there is a lot more pressure put on just one area of the sleeping pad. This gives the opportunity for weak spots to occur.

With the Sea to Summit Comfort Plus Insulated, you’re essentially relieving some of this pressure by having two areas inflated. This also means that if you do get a puncture, you still have one area of inflation to keep you comfortable until you can fix it.

Sustainability

Sea to Summit don’t make any special claims about the sustainability of the Comfort Insulated Plus sleeping pad, but they do have a generalized sustainability section on their website. Though this doesn’t really go much further than most brands claims that cover the basics and airy claims that I’m not entirely sure are always backed up.

That said, this sleeping pad really, really feels like it’s built to last. If you’re not looking for the most lightweight of sleeping pads and comfort is your main criteria to meet, then there is a really good chance that this could be the only sleeping pad you need.

This obviously does a lot when it comes to sustainability as the less we buy, the less of an impact we have. It would be good to see Sea to Summit publishing more information on this products sustainability, though.

Price

There is no doubt about it, the Sea to Summit Comfort Plus Insulated is certainly in the higher price point when it comes to sleeping pads. This firmly puts it in the premium end out of the sleeping pads we’ve tested for this round up.

That said, I feel it is worth the premium price point. It is endlessly comfortable, it is exceptionally durable, its warm and it’s from a brand who are well known in the outdoors and backpacking scene. It ticks all the right boxes on paper. Out in the wild, it ticks them too.

If you’re looking to up your game in terms of kit, then I can confidently say you will be happy with your investment. If you want the most comfortable sleep outdoors you can have, I think you’ll be even happier. 

Conclusion

I can’t rate the Sea to Summit Comfort Plus Insulated highly enough in terms of the next gen level of comfort it offers. Especially, if like me, you have joint concerns and sleeping comfort is your absolute paramount.

The dual chamber inflation system really takes things one step further and is the only sleeping pad in our overall best sleeping pads round up that uses this. This allows for a great level of adjustment on the trail and means you’re never rolling around with areas moving or changing.

The areas that let this sleeping pad down are its weight and its packed size, which do take some justifying (it is the heaviest in our round up and also one of the largest packed size). I was skeptical about this at first, but once I experienced the comfort it had to offer, I found myself rapidly making adjustments to make it fit and make sense with the rest of my gear.

I’m pretty confident that if you decide to buy this sleeping pad from Sea to Summit and are in the market for an exceptionally comfortable sleep, you won’t be disappointed.

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