Alternatively or in addition, a real treat to your hair which leaves it smooth, non-frizzy and hydrated is to invest in a silk pillowcase. Natural silk is known to reduce split ends, dryness, frizz, bed-head and knotted hair, to name but a few benefits. There are various grades of silk available but the best and most elegant looking would be a 16 momme (momme is the thickness of weave). There is a local company called SilkKiss -
www.silkkiss.co.uk - which specialises in the product and if you call them directly, you can save a few pounds on the postal charges as they will deliver directly to your door. (Wandsworth area)