I'm really into a bedside table. By that I mean the contents on top of it. If the bedroom is meant to be an oasis of relaxation, then one could consider the bed and bedside table to be the pinnacle of this relaxation. There's something very comforting about having specific items within arms reach of your bed no matter where in the world you are.
I always have something to write in. It's usually just a journal but at the moment I have the "Start Where You Are" journal by Meera Lee Patel which has self-love and self-exploration exercises. I received this as a gift and I love it. Writing before bed is a good way to stop from over-thinking for two hours after you close your eyes.
A book. I always read before bed; and as a person who once read a freshly published Harry Potter while walking in the streets of NYC I can't sleep without a book next to me. Currently reading Rebecca by Daphne Du Maurier for the second time. It's just as stunning as the first time I read it. Suspense in the most poetic fashion.
Lip balm. Right now I have the Laneige Lip Sleeping Mask; whose fancy name should give you a good idea of the price ($17 on Amazon). It comes with a very tiny spatula (why are tiny things always cute?) and envelope to put said spatula in. It's expensive for a lip balm but I have a feeling this will last me forever because you only need the smallest amount. It's a thick occlusive cream that honestly changes the way my lips feel overnight. It smells like bubblegum.
Salt lamp. These give off the most calming light ever. This plus a candle make my room a spa.
Some sort of aromatherapy spray. Right now I have one from Moon Hollow of Salem, MA which are handcrafted underneath a full moon and sealed with Reiki energy. I take this information lightheartedly; except the fact that the spray I have is "associated with elf magic," which I take very, very seriously. It's called Stork Moon and has lavender, eucalyptus, and geranium essential oils. If I didn't have this I would be using Aura Cacia Chill Pill which is lavender, citrus, and patchouli and smells of yoga studios.
I usually have some sort of hand cream. Right now I have the Burt's Bees Coconut Foot Cream which I don't use too often but keep on my bedside table in case I'm in a pampering mood. It's a thick glycerin based gel and is best used with socks. It's very effective, but the smell is half the reason I love it: sweet peppermint deliciousness.
Eye mask. A contoured eye mask is life changing. Not really, but it does comfortably shield you from the early morning bright light of a room without blinds. Perfect for traveling. This is assuming that you don't mind wearing what looks like a small bra on your face on an airplane.