Sleep sets can range from as low as $300 to upwards of $5,000 depending on the brand, type and size of set you get. Generally, you can expect a good quality, queen size set to retail for around $1,000-$1,500. Remember, this is an investment in your daily health and wellbeing. Averaged over the lifetime of the mattress, you’re looking at pennies a day. Not a lot when you think about how much you spend on a cup of coffee every day!