Pillow spray: it's one of those products you think is totally unnecessary until you try it and get completely hooked. One of my favourites is the This Works Deep Sleep Pillow Spray (£19.50). The blend of lavender, vetivert, and camomile works wonders if you struggle to wind down at nighttime. Plus, it feels extra special to incorporate into your nighttime ritual. The bottle also lasts forever as one spritz every evening is plenty.