For dark winter nights: hoodie with dragons soaring over a forest silhouette. This is apparently an older design for a rave hoodie from One Cue Apparel; I found it via Pinterest. (I know of other types of rave clothing but hoodies are new to me; I feel quite old now, LOL!)
To get your thoughts turned towards night and bedtime: DIY moon phase ring dishes with glow-in-the-dark paint. Tutorial by Rachel at DIY in PDX. Go see the glowy pics at Rachel's site!