FT SeriesWellbeing and fitness: the science of sleepHow to perfect the art of slumbering – or cope on less© Imagno/Getty Images | Le Lit (1892), by Henri de Toulouse-Lautrec Hot-water bottles are… hotThis season’s most fashionable accessory is the humble rubber heater – but have you got the bottle to wear one?We must stop trying to excel at sleepSome people are larks and others are owls, but none of us needs to stress about itWaking up to the new sleep rulesBefore the pandemic, working life trapped most of us in a one-size-fits-all scheduleGet that warm, fuzzy feeling – in your homeHow to create an ultra-cosy interiorEight steps for a better sleepThere’s never been a better time to reset our body clocksVideo: How to get more sleepThe FT tries out the latest nap pods and sleep aids designed to help exhausted workersMore from this SeriesAre you sleeping sustainably?Meet the makers who believe natural mattresses are the key to a good night’s sleepJapan’s sleep cafés: try napping on the jobSleep cafés prove a hit as companies encourage workers to grab 40 winksIs the search for a perfect night’s sleep keeping you awake?Apps and gadgets promise to unlock the secrets of rest — but have unintended consequencesThe Shapeless Unease — the yawning expanse of insomniaSamantha Harvey’s memoir of a year of poor sleep brings wry humour to our deeper fears23 buys to upgrade your sleep ritualsFrom silk dressing gowns to soothing scents, head for bed in styleWhen work gets in the way of sleep