InterContinental Grand Seoul Parnas is currently offering a nice traditional suite for the same 35k points as a standard room redemption. As always the IHG cash&point method to buy cheap points means this is open to everyone for a good discount on the usual rates.
Room: Korean Club Ondol Suite. “The club ondol suite has an underfloor heating system (ondol) you can experience traditional korean ondol culture. Includes lounge access.