Colors may hinder good sleepGrey is one of the colors that you should_________when thinking of re-painting your bedroom, according to a_________ _________at mattress companySealy.However, blue could actually_______ ________because it sends calmingmessages to the brain.And while you might sleep in the dark, creeping light from streetlamps,and clutter from an untidy room, could all______ _______ _______a night ofinsomnia.(失眠)Grey isn't the only color you should avoid. Reds, browns and purples canall hinder_____ _________ ________ sleep, says Sealy's sleep expert Natalie Armstrong