Sea to Summit Comfort Plus Self Inflating Mat (Updated 2022)

Sometimes, the extra weight associated with a more comfortable nights sleep pays for itself many times over. At 8cm thick and a winter rated R-Value, the Comfort Plus S.I. Rectangular Mats provide luxury in a packable size. A 30D stretch knit fabric is used on the top layer for a great next to skin feel, and a lightweight 30D polyester with extrusion laminated TPU is used on the base for increased durability. All of the Sea to Summit self-inflating mats feature our unique, multifunction reversible single valve, designed specifically for self-inflating mats. No more fighting re-inflation as you roll up your mat!

Comfort Plus SI Mat Features:

• Delta Core Technology
• Anti-slip print on base of mat, helps hold your mat in place when camping on sloping ground is unavoidable
• Luxurious 30D stretch knit fabric for a soft next to skin feeling on top
• Lightweight 30D polyester with extrusion laminated TPU used on base
• Large horizontal triangular cores reduce the weight and bulk without sacrificing support and comfort
• PU foam is thicker on top of each Delta Core for better insulation directly under you. It also keeps top and bottom surface of foam intact ensuring consistent warmth along entire length of the mat and better bonding with shell fabrics
• Diagonal supporting foam walls help inflate the mattress and creates a more compact rolled mat
• 8cm thick

Regular Sleeping Mat Specs:

• Length: 183cm
• Width: 51cm
• Height/Depth: 8cm
• Weight: 970g
• R Value: 4.1

Sea to Summit technical features:

Delta Core Technology

Delta Core is a truly innovative approach to reducing the weight and bulk of the polyurethane (PU) foam core of the Self-Inflating mattresses. The 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 sea to summit mattresses to ensure strength and durability, while still giving the user excellent support and self-inflating performance. 

Anti-Slip Silicon Print

Ever woken up cold because you slipped off your sleeping mat in the middle of the night? Not any more. Anti-slip silicone print patterns help your sleeping bag stick to your mat, and your mat to the tent floor.

Multi-Function SI Valve

Pillowlock System

R-Value