The La-Z-Boy Harper Sofa Bed caters to dogs with three different sleep styles. The Donut position is the most common sleeping position as it conserves body heat and makes dogs feel protected and reserved. Dogs who sleep in The Donut position usually have gentle, easy-going, sweet personalities and sleep well on any bed - especially cuddlers and loungers with walls to help keep body heat locked in. Side Sleepers tend to have happy-go-lucky and fiercely loyal personalities and are peaceful and comfortable with their surroundings. They sleep well on many types of beds: bolstered or non-bolstered. Dogs who sleep in The Sprawl position are confident and secure with themselves and their environment and tend to have independent personalities. They types of sleepers sleep well on pillows, sofas, and loungers.