The Guardian's Filter newsletter rounds up unconventional sleep products its writers have personally tested, reflecting growing interest in the "sleepmaxxing" trend of optimising rest through specialised gadgets. The piece highlights items ranging from a pop-up blackout tent to a neurotech headband, offering readers first-hand impressions rather than standard product marketing.

Featured items include zDen's Personal Sleep Sanctuary tent (from $99), praised by photo editor Tracy Allison as a less conspicuous alternative to taping blackout panels over windows; the Manta SOUND Sleep Mask (from $143.10), a Bluetooth eye mask that blocks light and noise; the Bluewave Ultra Slim Gel Memory Foam Pillow (from $39.95); the BedJet 3 (from $498), which pumps climate-controlled air into the bed; and the Elemind Headband ($399), which uses acoustic stimulation synced to brainwaves to aid sleep and jet lag. A Jabees pillow speaker is also mentioned, though the excerpt cuts off before full details are given.