Thermarest Trail ProLite. Was not difficult. Just cut it about two foam cells longer than you ultimately want it to be. Then you have to get the foam out and any residual foam bits with alcohol or something. Lay it flat with no wrinkles and iron it shut and then you can cut the residual down to the desired length being careful to not cut through the part that is ironed flat and creating the seal.
I suppose that's how one defines ultralight.
[Here is a link to a database](http://pads.parametrek.com/index.html?weight=_,_,inc) that has what I think has a fair amount of dated info, but several of these pads may be found online or used. If you're looking for the most UL, search for "small" or "xs" or maybe short or women's sizes. Granted, they will be like 60-66 inches, and ignore R ratings. Not the best, but you did say UL.
The lightest I know of that you can find in numerous places today, that is practical is maybe a [Thermarest Trail Pro Lite,](https://www.rei.com/product/246291/therm-a-rest-trail-prolite-sleeping-pad?sku=2462910001&store=&CAWELAID=120217890019568209&CAGPSPN=pla&CAAGID=147758268239&CATCI=aud-830183485327:pla-2025206723438&cm_mmc=PLA_Google%7C21700000001700551_2462910001%7C2025206723438%7Cbrand_flag%7C9920629669&gclsrc=aw.ds&gad_source=1&gad_campaignid=9920629669&gbraid=0AAAAAD_DTlybYNrLgOHdzUcqJfJrQrWwa&gclid=Cj0KCQjwzaXFBhDlARIsAFPv-u_YupbUB22i1pq14Oi0XjQcvId288DBU3uPq-FZhaA0Uw7-Z7c4D1AaAjYeEALw_wcB) which is 1lb 8oz. If Thermarest brings back the ProLite you may want to look. Not that warm, but better than their Scout, and light. But the better one is the [ProLite Apex](https://www.rei.com/product/175625/therm-a-rest-prolite-apex-sleeping-pad), it was 1lb 6oz with a R 3.8 rating. Those were very popular just a couple years ago, so...
We just bought new pads this summer for sea kayaking. Space in our boats was an issue so we found a Thermorest model that folds in half before rolling. If space matters this will help.
Thermarest Trail Pro Max. As I recall they about 2.5 inches. Maybe 3. Very nice surface and quiet to sleep on.
The really cool bit of kit is an electric inflator I bought for packrafting by Flextail. It’s a small rechargeable 4.5 kpa pump that will inflate a mattress in a few seconds. It also has a light and you can even plug your phone in to the battery to charge if you need to.
Still on a Thermarest TrailPro and the Nemo Fillo Pillow and haven’t had any complaints. I also have a Big Agnes Rapide which is thicker but takes longer to blow up vs the Thermarest.
If you don't mind me asking are you a larger person? I'm around 270 and a side sleeper and have been curious about getting a different sleeping pad. I've been using the Thermarest Trail Pro and it's pretty comfortable, but it doesn't pack down very small
We use two square thermarests connected together with a sort of fitted sheet that thermarest sells for that purpose (synargy sheet I think) if we are car camping the mundokings are incredibly comfortable. If back country camping then a more package one like the trail pro. Then we use a quilt instead of sleeping bags unless it’s getting down below 5c or so at night.
A good sleeping pad and a sheet and quilt instead of a bag goes a long way.
Top Sleeping Pads on Reddit
1
Exped
MegaMat Series
92% positive of 454 users
Car camping comfort champ, but some side sleepers find it thin.
DGT31
