Here are top boutique eco-conscious hotels and lodges around Sigiriya (short list with what makes each special, approximate distance to Sigiriya Rock, and booking tips):

1. Jetwing Vil Uyana — eco-luxury wetland reserve

• Why stay: Converted paddy into a purpose-built wetland reserve with stilted villas, strong sustainability credentials, excellent birdlife and nature immersion. Widely cited as one of the top eco-hotels in the area/world. (en.wikipedia.org)
• Distance: ~6 km from Sigiriya Rock (short drive). (ecohotelsguide.com)
• Tip: Book villas over reedbeds if you want maximum privacy and wildlife viewing.

2. Water Garden Sigiriya — boutique design villas with nature focus

• Why stay: Contemporary private villas set among landscaped gardens and paddy fields with direct views of Lion Rock; high-end, intimate property that blends with the landscape. (rose-drops.net)
• Distance: Very close — typically 5–10 minutes’ drive to the Sigiriya Rock entrance. (rose-drops.net)
• Tip: Great for couples/honeymooners who want villa privacy and rock views.

3. Heritance Kandalama — architecturally famous, eco-minded

• Why stay: Iconic eco-conscious design (built into the cliffside overlooking Kandalama Lake), strong conservation/community initiatives and spectacular views; a good luxe option near the Sigiriya/Kandalama corridor. (bestsrilankabudgettours.com)
• Distance: ~15–20 km (about 20–30 minutes’ drive, depending on route). (thebrokebackpacker.com)
• Tip: Book a lake- or rock-view room for sunrise/sunset panoramas.

4. Back of Beyond — Dehi Gaha Ela / Pidurangala (Back of Beyond group) — off-grid eco-retreats

• Why stay: Small-scale eco-retreats and bungalows with jungle/treehouse vibes, strong focus on low-impact stays and nature immersion — good for travelers who want rustic, sustainable accommodation. (hidmc.com)
• Distance: Varies by property; many Back of Beyond options are within ~10–20 km of Sigiriya/Pidurangala. (rose-drops.net)
• Tip: Expect simpler facilities but high nature value; confirm whether meals and transfers are included.

5. Uga Ulagalla (Ulagalla by Uga Escapes) — boutique rural estate with conservation ethos

• Why stay: Large private estate/converted village villas set among paddy fields with an emphasis on local culture, responsible tourism and farm-to-table food; quiet, restorative. (refinedboutiquehotels.com)
• Distance: Around 20–30 minutes’ drive from Sigiriya (depends on which part of the property/route). (refinedboutiquehotels.com)
• Tip: Great for multi-day stays where you want activities (cycling, village visits, cooking) plus eco credentials.

6. Kuwera Eco Lodge / smaller eco-lodges (examples: Kuwera, Jaye Eco Lodge, Aarunya Nature Resort)

• Why stay: Budget-to-midrange eco-lodges and boutique guesthouses that emphasise local sourcing, simple sustainable practices and proximity to Sigiriya; good value for nature-focused travellers. (refinedboutiquehotels.com)
• Distance: Many are within 5–12 km of Sigiriya Rock. (refinedboutiquehotels.com)
• Tip: Ideal for shorter stays or travellers on a budget; read recent guest reviews for exact sustainability practices.

Quick booking & visit tips

• If eco-credentials are important, check each property’s sustainability page (waste/water/energy policies, community programs) and recent reviews — properties (even well known ones) update programs frequently. (en.wikipedia.org)
• Location: Sigiriya Rock is the focal point — pick a hotel based on whether you want immediate proximity (EKHO, small guesthouses), wetlands/jungle immersion (Jetwing Vil Uyana, Back of Beyond), or luxury villa privacy (Water Garden Sigiriya, Ulagalla). (rose-drops.net)
• Season: Check local rainfall patterns and hotel cancellation policies before booking (some eco properties are seasonal or have limited opening days). (ecohotelsguide.com)

If you want, I can:

• Narrow this to a top 3 in a particular budget (luxury / midrange / budget), or
• Check current rates/availability for specific dates and provide direct booking links.