This older, but clean and well-run, capsule hotel in Kabukichō is just for women. Amenities include a big shared bath, sauna, pyjamas, towels, hairbrushes, skin creams and a generous check-out time of noon. It's often full, so swing by early to check – before you've hit the bars and missed the last train – or book ahead.
If you book and pay ahead for multiple days you won't need to check in and out everyday. Cleaning time is between noon and 3pm, during which you and your stuff need to be out of the capsule (if you're not fussed about clean sheets and prefer not to vacate, let the front desk know when you check in).