A sub 1kg sleeping mat that offers 5cm of insulated comfort... I'd sleep soundly on that. The Sea to Summit Comfort Light SI Hiking Mat features Delta Core™ technology that takes the weight and bulk out of the Sea to Summit self-inflating mat range, without sacrificing comfort.
Made of lightweight 30D polyester, the Comfort Light has been created with weight and comfort at the forefront of its design and is a great choice for all-season performance.
The base features an anti-slip print to keep your mat in place when sloped campsites are unavoidable, and the multi-function valve makes inflation, deflation and packup easier than ever. The Sea to Summit Comfort Light self-inflating mat delivers a good night's sleep whilst catering to the needs of a lightweight hiker.
ASTM F3340-18 R-Value: 3.1
5cm thickness without the extra weight
Anti-slip print on base
Lightweight exterior fabric
3.1 | ASTM F3340−18
183L x 51W cm
28L x 14W x 14H cm
30D TPU Laminated Polyester
Delta Core™ PU Foam
Hiking | Trekking
Another "which mat for me?" question1 answer
Thinking of upgrading my current hiking mat to get a better nights sleep due to my hip and shoulders being on the ground. I'm 173cm tall, weigh 78 kg and a bit of a side sleeper. In order my mat priorities are: comfort, robustness, price then pack size. Trying to decide between the StS Comfort Light SI and the Therarest Prolite Plus. Reviewing your site (which is the best by the way), I think the StS will have it on comfort (5 mm thick) and price, but will lose out to the Thermarest on quality of materials and robustness. I think the Thermarest will have it on robustness, especially on valve reliability and materials, but it is behind the StS on price and foam thickness. At 3.8 mm its not much better than my current mat with its 3 mm of thickness. Interestingly, the Thermarest has a higher R value than the StS, although its not as thick. I don't know if this makes it more comfortable than its 3.8 mm of foam might indicate. I'm sure they are great mats, but as a motorcycle camper, which mat do you think is more suited for me?
Brett - Franklin(2 years ago)
Thanks for getting in touch, we do get a lot of this type of question so luckily we're prepared! If your first priority is comfort, then I would say the Comfort Light SI is going to ticket that box, with it's 5cm of thickness, over the 3.8cm of the Prolite Plus. In terms of Robustness, the Prolite Plus is a little more robust with 50Denier fabric, versus 30Denier on the Comfort Light however, the valve system is possibly slightly less robust. In terms of R-value, the design of the cores that are cut out of the foam on the Comfort Light SI leads to a lower weight, smaller packed size, but also a slightly lower R-value, when compared to other mats of 5cm thickness. A better direct comparison for the Prolite Plus would be the Camp Mat SI which has slightly more robust fabrics that the Prolite Plus, and a slightly higher R-value. Overall you probably won't find that the R-value is going to influence you much in Australia unless you plan to snow camp, so removing that from the equation, you listed your first priority as comfort, so I would recommend the Comfort Light SI for that reason. You'll likely find the Thermarest isn't really much of an upgrade from your current 3cm thickness.
Leece - Snowys(2 years ago)
Best mat for me!1 answer
Thank for your reply re the kids mat, that’s really helpful. Yes I am also looking for a lightweight mat for me as currently I just have the Zempire megamat - too big for hiking. I did consider the Comfort plus S1, but am a little concerned about the weight/pack size, so started looking at the S2S air filled ones for me. It’s a bit overwhelming though trying to compare them all! I’m wondering about the Ultra Light Insulated Wmn’s. The Ether light XT insulated - womens looks better and really comfy, but just a bit too expensive. I also considered the Comfort Plus Insulated Sleeping Mat, and Comfort light - insulated, but didnt’ like the idea of the noise mentioned in the reviews. I’m wondering how comfy the Ultra Light Insulated Wmn’s is, and if it sounds like a good compromise between comfort, size, R and price and if you think it’s best for me? Thanks for your advice!
Bella - Melbourne(3 years ago)
Not a worry, happy to help. I'd say for you, either go for the Comfort Light SI with the 5cm thickness or go for one of the dual-layer air-filled insulated mats. The Ultralight Insulated Women's mat is a good choice, but it is only a single layer design, so if you did happen to have an accidental overnight puncture, you'll wake up on the ground. The Comfort Light Insulated Women's mat is a pretty good choice, as it has plenty of depth, as well as a dual-layer between the shoulder and hip. I've recently upgraded to this model, and I think it's pretty ace. Having a fall back layer in case of puncture is a handy feature. In terms of the noise - I can't I personally notice it, because I'm asleep, however, if you're a really light sleeper, or are likely to be walking with a light sleeper then maybe the Ether Light XT Insulated (if you can afford it), or the Comfort Light SI might be the best option.
Leece - Snowys(3 years ago)
Best mat for kids1 answer
Hi, I'm looking for a mat for my 5 and 7 year old that would work for school camps as well as hiking. When hiking I will likely end up carrying most of the equipment, so I want small lightweight mats. But I'm a bit scared to get them an air filled one in case they jump on them and pop them! So I'm considering the S2S Comfort Light SI and Camp mat SI. I've looked at the specs and noted the different R ratings, thickness etc but just can't decide what would be camp is just too heavy. I also considered the Comfort Plus SI and it looks super comfy, but heavier so maybe not as good for us given how much stuff I'll be carrying. Can you please share your thoughts on this, and/or recommend best mats that are durable yet light weight, comfy and affordable for kids?
Bella - Melbourne(3 years ago)
You're on the right track there with the Comfort Light SI - we think it's a great option and provides a good level of comfort, for a fairly decent packed size and weight. We find that some people tend to also look at the Ultra Light SI Hiking mat for kids, as they're a bit lighter and smaller, and kids at that age generally won't notice the difference between 2.5cm and 5cm! In terms of the R-values, as long as you're not snow camping the 2.7/2.6 should suit most Australian conditions and not cause any issues for you. I'd probably rule out the Comfort Plus SI for the kids, but it might be a nice option for you depending on if you've got a mat or not? Another good way to save some size and weight is to opt for the small mat for the kids, as they will likely be able to use a shorter mat well into their teen years, and possibly adulthood (depending on genetics etc). The Thermarest Prolite Sleeping mat also sits nicely alongside these but will set you back a little more $$.
Leece - Snowys(3 years ago)
Which way to go???1 answer
Hi guys, I have a cheaper, heavier SI sleeping mat (should've researched earlier) for a 6 to 8 week hike/trek around QLD, now tossing up between Sea to Summit Comfort Light Insulated and their Comfort Light SI Sleeping Mat... I know that you get what you pay for and really I'd value your opinion on the best way to go??? Cheers Mark
Mark - Barcaldine(5 years ago)
Big question. Both the Sea to Summit Comfort Light Insulated and the Sea to Summit Comfort Light SI Sleeping Mat are fantastic options. In comparison, it's hard to pass up the Sea to Summit Comfort Light Insulated as it is a lighter, thicker, higher R-Value and smaller packed mat. I personally also think the air-cell mats are much comfier as they distribute body weight much more evenly. The catch with these mats though is that you need to inflate the mat yourself either with your breath or with the use of a pump available here or here. The downside is that being an air-cell mat, they can also be a touch noisy as you move on them. As a result, the upside then of the self-inflating mat is that they inflate themselves and are much quieter because of the Delta-Core foam.