Here are well-known Singapore hotels that offer top-floor/presidential/penthouse-style suites with skyline or Marina Bay views — good options if you want a penthouse-style stay overlooking the city:

• Marina Bay Sands — Chairman / Presidential / Skyline / Merlion / Straits suites: multiple large top-floor/skyline suites with panoramic city-and-bay views (some include private entertainment rooms, kitchens and balconies). Great for dramatic Marina Bay and city skyline vistas. (vexploretours.com)

• Mandarin Oriental, Singapore — Royal Marina Bay Penthouse and Presidential suites: a multi‑bedroom Royal Marina Bay Penthouse (uppermost floors) and several presidential/residential suites with expansive balconies and panoramic Marina Bay / skyline views. (mandarinoriental.com.cn)

• The Fullerton Bay Hotel (and The Fullerton Hotel) — Presidential / Loft / Governor suites: waterfront hotels with bay- and skyline-facing Presidential and Loft/Loft‑style suites (glass-enclosed verandahs / high ceilings) that look directly over Marina Bay and the CBD. (fullertonhotels.com)

• The Ritz‑Carlton, Millenia Singapore — large signature suites with sweeping Marina Bay / skyline views (the hotel is known for very high‑floor suites and extensive city vistas and art-filled interiors). (elitetraveler.com)

• Fairmont Singapore (and Swissôtel The Stamford) — Junior Penthouse / top-floor suites: the property has had penthouse/junior‑penthouse style suites on high floors with wide city / Marina Bay views. (Good option if you want a large single-floor suite with dramatic vantage points.) (pointswise.ca)

• Four Seasons Hotel Singapore — Presidential Suite (top‑floor) with Orchard/skyline views: a presidential/top-floor suite offering skyline and greenery views from high above Orchard Road. (elitetraveler.com)

• The St. Regis Singapore — Presidential / penthouse‑level suite: St. Regis properties typically offer a top-level Presidential suite with skyline views and butler service. (uncoversixtyfive.com)

Notes and quick tips

• “Penthouse” naming varies: some hotels call their top residences “Royal Penthouse,” “Presidential Suite,” “Chairman/Straits Suite,” or “Skyline/Chairman Suite.” Confirm the exact room name and floor when booking. (robbreport.com.sg)
• For the very best uninterrupted Marina Bay skyline views (including close views of Marina Bay Sands and the F1 circuit), look for suites described explicitly as “Marina Bay,” “bay view,” “penthouse” or “uppermost floor/penthouse” in the hotel’s suite descriptions. (mandarinoriental.com.cn)
• Availability and suite configurations change frequently (and special suites may be reserved or used for events), so I recommend contacting the hotel’s reservations or the concierge to confirm which exact penthouse/presidential suite is available for your dates and to request specific-view placement.

If you want, I can:

• Check availability and current rates for any of these properties for particular travel dates; or
• Compare a short list (e.g., Marina Bay Sands vs Mandarin Oriental vs Fullerton Bay) by size, typical amenities (kitchen, balcony, private pool), and approximate nightly rates. Which would you like me to do next?