After managing the Dorm Shopping Recommendations & Deal Alerts Facebook group through several dorm shopping seasons now, I am not surprised that bedding is one of the most frequently discussed topics. What has been surprising is how many people have been asking about the best comforter size for their Twin XL dorm bed. So, after a lot of discussion in the group and some real-life experience, we compiled the pros and cons of comforter size options for a Twin XL dorm mattress and outlined them below.
Most* college dorms are furnished with Twin XL beds. The ‘XL’ stands for extra long, and the mattress measures 38 inches wide by 80 inches long. This is the same width but 5 inches longer than a standard Twin bed. The extra length is designed to accommodate taller students and makes this bed the same length as a Queen or King mattress.
* Note that this is MOST. In the 2025 dorm shopping season, we saw a lot more Full, Full XL, and even regular Twin-size dorm beds. Please don’t make assumptions, know before you shop!
As discussed in Topic 3 – How To Layer A Dorm Bed, your mattress encasement (optional), mattress topper, mattress pad, and fitted sheet all MUST match the dorm mattress size.
The blankets and comforters are where you have some flexibility.
Selecting the right dorm bed comforter isn’t just about warmth and aesthetics; it’s about cost, comfort, and functionality. Reusability after year one, room setup, ease of making the bed, and sleep habits are all factors in this decision.
The chart below lists the typical comforter dimensions by size.
Figuring out the right comforter size for Twin XL beds takes a little math. Wait until you see the math we use to figure out the right rug size for your dorm! (coming soon)
So the question is – which comforter size is right for YOUR dorm bed? There is no right or wrong answer.
Does your school require on-campus living throughout college? Is it all the same bed/mattress size for multiple years? If you’ll be staying on campus year after year in a Twin XL bed, then an investment in a good Twin XL comforter may make sense.
Do students typically move off-campus after freshman year? What are the off-campus housing options for sophomore through senior year? You’ll probably find a mix of furnished and unfurnished options.
If off-campus housing is likely after freshman year, you’ll typically have a larger bed in a private bedroom. Using a larger comforter in your freshman year means it could be used again for off-campus life after the dorm.
Please keep in mind, though, that many items used freshman year, especially bedding and rugs, may have such a rough year (“I never did find the laundry room, mom”) that you won’t want to reuse them. You may not even want to put these items in your car in May when it’s time to pack up to head back home. 🙂
REUSABILITY: If you will only stay one year in a dorm and then move to off-campus housing, you might consider a larger-size comforter for reusability. You won’t be able to reuse your Twin XL sheets, mattress pad, and mattress topper, though.
If you will be raising your dorm bed to make better use of the space below the dorm mattress for more storage, you may want to consider a larger comforter size so the sides hang down farther and cover some of that storage. Rest assured, that under-bed storage will look neat and organized on move-in day, but there’s definitely something to be said for having it covered up for the rest of the school year. 🙂
For a typical raised dorm bed (at the top height of an adjustable frame), you should have about 30″ of clearance for storage below the mattress. That’s typical, but please check with your school for actual measurements and dimensions.
To fully cover the area below your dorm bed, you can also use long bed skirt panels or even inexpensive curtains! We’ll have an upcoming Dorm IQ module to show you how to do this.
If you plan to fully loft the bed or will be in an upper bunk, your decision is made. Go with a Twin/Twin XL comforter. You won’t want to deal with all the extra fabric of a larger comforter, or the bed safety rail hanging in front of the space below the bed. Please join us in insisting that high dorm bed safety rails are mandatory, even if the University doesn’t mandate this (yet).
BED HEIGHT: If your bed will be fully lofted or a top bunk, choose a Twin/Twin XL comforter. If you have a lower bed, consider a larger comforter to partially cover your below-bed storage, or a Twin/Twin XL comforter over a bedskirt to fully cover it.
While you can see some of the obvious benefits of a larger comforter for a Twin XL dorm bed, consider these points.
1) Will a longer comforter add one more barrier to making the bed since it is bigger and more cumbersome?
2) Will a longer comforter that hangs down in front of the storage become an annoyance, moving it out of the way to get to drawers and other storage under the bed?
3) If the bed will not be up against a wall, a larger comforter will have the tendency to slide off of one side of the bed, but that can be managed with bed clips if necessary.
4) Consider laundering your comforter. Those commercial dorm washing machines can be on the small side, so it may be difficult to wash a larger comforter while on campus.
DAY TO DAY: If the points above aren’t concerning to you, a larger comforter may be a good choice.
We have many members in our Dorm Shopping Group who tell us their kids don’t use a comforter at home and probably won’t at school. My son is one of these – he’s all about sleeping under a soft, fluffy blanket and only has a comforter at home to make the bed look made! I did buy him an inexpensive Twin XL comforter so that his bed would look made in college, too!
If your student resists a comforter or kicks it off because they sleep hot, go with a lightweight Twin XL size if you decide to send a comforter anyway.
Students who move a lot in their sleep may be better off with a larger comforter to keep them covered. It is pretty easy to wriggle out from under a Twin width comforter.
This might be a sensitive subject, but if your student shares their bed with a friend at times, a larger comforter will be a much better choice. Two people under a twin-width comforter would be a struggle. You know, just in case their BFF comes to visit from another college.
There is no right answer to the best-sized comforter for a Twin XL dorm bed. After reading through the considerations above, you’ll need to make the best decision for your situation. If you want to see examples of the different sizes on many dorm beds, you can visit the Dorm Shopping Recommendations group and visit this post to see the many pictures in the comments. You’ll need to request membership in the group if you are not already a member.
If you decide to go with Twin/Twin XL, aim for a comforter that is at least 86″ long, or better yet, 90″. The Twin XL mattress is 80″ long.
If you decide to go with a larger size, I strongly recommend a Queen size over a Full for 2 reasons.
1) A Queen mattress is the same length as the Twin XL. A Full mattress is 5″ shorter – the same length as a regular Twin. The extra length of a Queen will help cover the length of your Twin XL dorm bed.
2) For future years in off-campus housing, both Full and Queen beds are common, with Full XL becoming more popular as well. Or you may need to furnish your apartment. Regardless of bed size, a Queen comforter will fit well on a Full, Full XL, or Queen.
Ok, you’ve decided on the size, now what type of bed cover is best for your dorm room? This is another personal decision, and all 3 are commonly used.
Regardless of the choice, be sure that your selection is OEKO-TEX® certified. This certification ensures there are no toxins in the materials. With so much of our bedding coming from factories overseas with limited regulations, you want to be sure your student is sleeping safely while in college.
See the list below for affordable, recommended OEKO-TEX® certified bedding. All are highly rated.
See our full Dorm Essentials Shopping Guide for more bedding information as well as every other category for your dorm room.
Choosing the right comforter size for a Twin XL dorm bed is a balance of practicality, comfort, and style. I hope the information above has helped you to narrow in on which size you prefer for your dorm bed.
Still have questions? Please comment below, or come ask us in the Dorm Shopping Recommendations & Deal Alerts Facebook group. So much great info in the group along with hundreds, maybe thousands, of move-in pictures from the past few years to give you ideas and inspiration.
=> Please share this article with your dorm bound friends and their parents. I would love for everyone to understand how to choose a comforter size for a dorm bed before they start dorm shopping!
Affiliate Disclaimer: I only recommend products I do or would use myself. All opinions expressed are my own. I may receive a small commission, at no additional cost to you, for purchases made through the links in this post. Please see our full disclaimer for details.
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