Great — here’s a concise, region-by-region shortlist of private villas and couples‑friendly suites in Sri Lanka, with what makes each special, approximate price/feature notes and quick booking/season tips. I’ve cited reputable sources for the most important details.

Top picks by region (excellent for couples / honeymooners)

• South coast (Mirissa, Weligama, Galle area)

  • Cape Weligama (Weligama) — cliff-top luxury resort with one‑bedroom Prestige/Grand Villas and private plunge/infinity pools, large terraces and ocean views; ideal for sunsets and short drives to Galle and surf spots. (Luxury villas with private plunge pools are standard at Cape Weligama). (expedia.ae)
  • Amanwella (Tangalle) — cliff/beach resort with large suites and private pool‑style villas (very private, adults/honeymoon friendly). (Note: Amanwella is widely recommended for couples; check the hotel website for room types and current offers.) (general reference: region listings and reviews). (thetimes.co.uk)

• West / southwest coast (Bentota, Hikkaduwa, Kalutara)

  • Kahanda Kanda (near Galle / Koggala Lake) — boutique hillside property with individually designed villas and a standout honeymoon villa; several rooms/villas have private pools and secluded gardens — quiet, romantic and close to Galle Fort. (thetimes.co.uk)
  • KK Beach / KK Beach Hotel (near Galle) — small boutique property with ocean penthouses and suites popular with couples; good for beach + Galle sightseeing. (thetimes.co.uk)

• Tangalle / south‑east beaches

  • Amanwella (Tangalle) — see above (very privacy-focused suites ideal for couples). (thetimes.co.uk)

• Cultural Triangle / countryside (Anuradhapura, Sigiriya, Dambulla)

  • Uga Ulagalla (Anuradhapura area) — individual private pool villas (one‑bedroom pool villas and larger private villas) set around paddy fields; excellent for couples who want privacy, country walks and cultural sightseeing. Villas include private plunge pools and large decks. Typical starting rates vary by season (example starts cited ~USD 380+/night for some villa types). (ugaescapes.com)
  • Diyabubula (Barberyn Art & Jungle Hideaway, Dambulla area) — a very small lodge of individually designed villas/art hideaways (intimate, artistic, excellent for couples wanting seclusion). (en.wikipedia.org)

• Hill Country (Kandy, Nuwara Eliya, Ella)

  • Ceylon Tea Trails (Hatton / Dimbula) — five restored planter bungalows that can be taken as private bungalows or booked exclusively; classic colonial romance, but more remote — great for couples who want tea‑estate privacy and a butler‑style service. (thetimes.co.uk)
  • The Kandy House (Kandy) — intimate manor/heritage villa‑style hotel with very private suites and a calm garden setting (no TVs in some rooms; boutique romantic vibe). (thetimes.co.uk)

What these types of stays give you

• Standalone villas or one‑bedroom pool villas: private plunge or infinity pools, terrace/dining areas, private gardens, in‑villa dining and bespoke service — perfect for couples and honeymoons. (Examples: Ulagalla, Cape Weligama, Kahanda Kanda). (ugaescapes.com)

Approx price guidance (very approximate; verify for your dates)

• Luxury one‑bedroom private villas / plunge‑pool suites: commonly USD 300–900+ per night depending on property, season and inclusions (some ultra‑luxury villas and exclusive-use options can be significantly higher). Example: Ulagalla villas sometimes show from roughly USD 380+/night in sample listings; Cape Weligama villas are sold as premium villa categories on major booking sites. Always check each hotel’s site or a current booking site for exact rates. (arabiers.lk)

Best time to go (for beaches vs hill country)

• South & west coast (beaches, whale watching, Mirissa/Weligama/Galle): best generally December–April (driest, calm seas). (visitsrilanka.ai)
• East coast (Arugam Bay, Trincomalee, Pasikudah): best April–September. (visitsrilanka.ai)
• Hill country / cultural triangle: driest months December–March (cooler, good for trains and hikes). (useteleport.com)

Quick booking tips for couples

• Book early for December–February (peak season / holidays). Popular villas/honeymoon suites sell out.
• Ask directly about “private villa” vs “villa category with private pool” — some hotels have standalone villas, others are villa‑style rooms in a cluster. Confirm privacy level, pool heating (if needed), and included services (butler, transfers, meals).
• Look for honeymoon packages (complimentary perks, private dinners, spa credits) if you’re celebrating.
• Transfers: internal transfers by private car or seaplane (where offered) will add comfort — ask hotels about airport transfers and approximate driving times.
• Check visa requirements and any travel‑advice updates before booking. (Sri Lanka has offered promotional visa measures recently; check latest official info at booking time). (cntraveler.com)

If you’d like, I can:

• Narrow this to just one region (south coast, hill country, Cultural Triangle) and give a 3‑option shortlist with nightly rates for specific dates you have in mind; or
• Check availability and exact current rates for any of the properties above for your travel dates (I’ll need the dates and number of nights).

Which would you prefer next?