Capsule Inn Osaka
If you travel by yourself and are on a tight budget, this men-only capsule-style hotel could be a great option and an interesting experience.
Compact sleeping compartments are placed side by side in an air-conditioned room. Dorms for 1-3 people are also available, with shared bathrooms. Free WiFi in common areas. Sauna facilities, laundromat, massage services available. Breakfast is served for an additional charge.
Located right in Doyama 'gaybourhood', and within walking distance from the Umeda subway station. Keep in mind that the capsule can only fit one person, so no room for guests.