This men-only capsule hotel perched atop Dōgenzaka hill includes large shared bathrooms, massage chairs and coin laundry machines; the 'deluxe' capsules (¥5000) are slightly bigger. Though old, it's a clean, well-run place, and major credit cards are accepted. Sorry: no visible tattoos.
Capsule Hotel Shibuya
Shibuya & Shimo-Kitazawa