Get an All Season Down-Alternative Egyptian Cotton Comforter for prices starting at $39.99 plus free shipping at Groupon Goods. Prices are $39.99 for Twin size, $44.99 for Full/Queen and $49.99 for King. This is the lowest price we found by around $10 in each size area. These are 250-thread-count Egyptian cotton comforters stuffed with a medium-warmth polyester down alternative. Six colors are available. Sales tax is charged in most states.