Mattress Camp Plus Mat S.I.™ Rectangular Wide 183x64x7.5cm

The Camp Plus S.I. is designed to provide maximum comfort for people chasing a versatile all around sleeping mat.

Combining robust and durable 75D fabrics with the unique Delta Coring technique allows the removal of over 40% of foam for a compact do-it-all mat.

Built thicker than the original Camp Mat S.I. and using horizontal Delta Coring, the Camp Plus S.I. provides great value, durability and comfort.

The 75D polyester makes for a tougher, more abrasion resistant base, while at 7.5cm thick, the Camp Plus S.I. provides ample cushioning for even the boniest of hips. The high 4.3 R-value also means you can use it all year round.

All Sea to Summit self-inflating mats feature a unique, multi-function reversible single valve, designed specifically for self-inflating mats. No more fighting re-inflation as you roll up your mat!

Camp Plus Self Inflating Sleeping Mat
The Camp Plus S.I. is designed to provide maximum comfort for people chasing a versatile all around sleeping mat.

Combining robust and durable 75D fabrics with the unique Delta Coring technique allows the removal of over 40% of foam for a compact do-it-all mat.

Built thicker than the original Camp Mat S.I. and using horizontal Delta Coring, the Camp Plus S.I. provides great value, durability and comfort.

The super thick Camp Plus S.I. Mat with Delta Cores delivers plus-sized comfort and warmth all year-round.

Plus size super thick all-season camp mat
Delta Coring removes over 40% of the foam to reduce weight and bulk without compromising durability
Robust and abrasion resistant 75D polyester shell fabric with extrusion laminated TPU
7.5cm thickness, R-value 4.3 ASTM F3340-18
Multi-function, high flow-rate reversible valve
Featuring the same Delta Core profile as Comfort Plus S.I. Mats
PillowLock attaches your Aeros pillow to your mat, holding it in place for a slip-free sleep
Includes self-adhesive puncture repair kit


Our Delta Core technique is a truly innovative approach to reducing the weight and bulk of the polyurethane (PU) foam core of our Self-Inflating mattresses Our patent pending coring process removes up to 40% of the initial volume of the PU foam, retaining enough for optimal support and comfort, while minimising the packed weight and size of the final mattress. Importantly, this coring technique has the additional benefit of keeping the top and bottom surface of the PU foam completely intact. This ensures consistent warmth along the full length of the mattress, avoiding the vertical holes or frame-like gaps that have traditionally allowed warmth to leach downwards. The full foam surface also provides significantly improved bonding of the foam to the shell fabrics of the mattress, thereby greatly reducing the chance of delamination. The shape and size of the Delta Cores are adjusted across the different thicknesses of our mattresses to ensure strength and durability, while still giving the user excellent support and self-inflating performance. The horizontal Delta Coring technique is used in our Comfort Light SI, Comfort Plus SI and Comfort Deluxe SI models.

We have literally put a new twist on our very successful multi-function valve so it specifically addresses the inherent characteristic of self-inflating mats-that is, the problem of the foam trying to re-inflate as you’re packing up.
We’ve engineered the “one-way” inflation valve to be reversible and used it to prevent the mat from drawing air back in. this allows you to roll the mat up as small as possible without fighting re-inflation as you go. This patent-pending valve design has the same slim profile, faster inflation than traditional screw valves, easy pressure fine-tuning and super-fast deflation rate as our air mattresses and pillow.