Sleepeezee Jessica Performance reviewed

The Sleepeezee Jessica Performance is a medium, 29 cm pillow top hybrid with 2,800 pocket springs and a 40 mm layer of Dual Gel Foam, co-designed with the Olympic heptathlete Dame Jessica Ennis-Hill. It is the core model of Sleepeezee’s new Jessica collection, sold only through retailers; at the time of writing (September 2026) Bridge Bedding Centre lists it at £849 in a single and £1,149 in a double.

Construction

According to Sleepeezee’s product page, the collection replaces the earlier Jessica Support, Jessica and Jessica Plush. The spring system has two tiers, 1,000 traditional pocket springs inside an encapsulated edge with 1,800 mini comfort springs above, and the comfort stack combines gel foam with Breathable Platinum Fibres, whose open, non-woven structure is meant to let moisture vapour escape. A pillow top finishes it, so the mattress is non-turn and only needs rotating.

Firmness and who it suits

Sleepeezee rates the Jessica Performance medium, which we place at 5 out of 10. A mid-scale mattress is the sensible default for most people. A 2021 review of 39 studies in the Journal of Orthopaedics and Traumatology (Caggiari et al.) concluded that a medium-firm mattress promotes comfort, sleep quality and spinal alignment. Couples and mixed-position sleepers gain most from the pillow top and the edge support, and people who overheat on plain memory foam get a gel and fibre stack designed to move heat and moisture instead.

Buying it

Sleepeezee makes it to order at its Rochester factory, offers a ten-year guarantee on its mattresses and donates £20 to The Children’s Hospital Charity for every Jessica mattress sold. At 36 kg for a king it is also far easier to rotate than Sleepeezee’s wool models. The weak point is buying it: there is no Sleepeezee checkout, prices and trial terms are set by each retailer, so the same size can cost noticeably more in one shop than another. Many British buyers also spend less. In a National Bed Federation survey of buyers carried out in November 2021, three quarters had paid under £800 for their bed. The previous-generation Jessica 1800 is still sold by Mattress Online if you want a Jessica for less.