You asked the right person. Chamomile. [ Her answer comes quick, immediate; knowledge of tea is, after all, one of Anathema's strengths. ] It's pretty soporific and easy to find. Herbal teas in general will help: ones with valerian root, lavender, or passionflower.

There's this one brand I particularly like from a local apothecary, with lemon balm, oatstraw, catnip, skullcap, and lavender. I can get you some, if you like. I usually decompress most nights with decaf tea.