I did a post a while back now on how to get 2nd, 3rd and even 4th day (Hark!) hair by pineapple-ing your hair at night and using a silk scarf to protect your curls. You can read all about it HERE.
I have been meaning to update this post for ages as I bought a much prettier scarf that is a much better size… this means I can wrap my hair in a better (IE less crazy looking) fashion, it’s more comfortable, slips less and generally looks much better. You can see how I wrap it below but there are loads of ways you can wrap a silk scarf at night to protect your hair.