Weโve been making some changes to my sonโs bedroom. Now that heโs graduated from high school, heโs working on his A&P (airplane mechanic) and pilotโs licenses, and his old setup wasnโt working for him. First, we upgraded his workspace to the Flexispot E7 Plus Max Standing Desk, and at the same time, we decided to add the Flexispot Kana Japanese Joinery Bed.
Iโll walk you through what weโve learned and help you decide if itโs worth adding the next time youโre ready to refresh a bedroom.
Flexispot Kana Japanese Joinery Bed Basics
Assembly

One of the primary features that drew me to this bed was that it required no tools to assemble. Seriously, forget the hex wrenches, screws in awkward corners, and cammed out heads. You donโt have to deal with those frustrations.

As a Japanese joinery design, the majority of the bed simply slips together. Once you have the frame assembled, you press shims into the corners to tighten everything up.

Even though you donโt need any tools, there are several fasteners youโll have to install. Fortunately, they have knobs to grip with your fingers, and they only need to be hand-tight.

The most frustrating part (if you can call it frustrating for something so easy) was getting the cross slats in place. They use a hook and loop connection to avoid sliding around, and you have to kind of unroll and tighten as you go to get it just right.
The whole bed comes together far more quickly than traditional designs. Even moving slowly to study the directions as we went, we were done in under half an hour, and you could wrap it up in about 10 minutes if you know what youโre going. Considering how easy the assembly was, itโs a remarkably stable design that doesnโt squeak or shake.
Design

The other element that drew me to the Kana was its clean look. It has an almost minimalist style, but it doesnโt come across as cheap or inferior to traditional designs. Instead, it brings a calming, stable feel to the room.
The bed we replaced was very nice and had an attractive, ornate design. It was a bit too big for the room, though, so even though it looked good, the room felt crowded. With the Kana, we didnโt have to get a smaller mattress, but the design was a much better fit and style for the look weโre going for. It even has recessed legs to hug the wall better.
The frame is made from rubberwood, as is the headboard if you decide to go with that option. Going with that over particle board offers a much nicer look and makes for a nice, tight assembly thatโs less prone to damage. In fact, the design is strong enough to support up to 1500 pounds for the king size!
Another nice bonus Flexispot put in was a slightly taller frame than similar designs. At 6 feet, 2 inches tall, my son appreciated not having to drop down as far to lay down. It also gives you a little more than 10 inches of clearance underneath for storage.
Additional Highlights
- Reduced Injury Risk: Corners and edges are rounded
- Lifetime Warranty: Youโre covered if anything fails
Flexispot Kana Japanese Joinery Bed Options

You have several options to choose from when youโre selecting your bed. There are three sizes (full, queen, or king) and three colors (oak, walnut, and natural walnut). If youโd like a bit more of a mid-century look, thereโs also a new Retro frame design.
The basic bed frame is great for some rooms, but it really does look better with a headboard. You can get the standard wood headboard with any frame size. The queen size also has options for a pillowboard, an adjustable headboard, or an upholstered one.
We went with a queen size frame in the oak color to warm up the room and chose the basic headboard to maximize how much wood shows.
Pairing the Right Mattress

The mattress on the old bed was getting toward the end of its usable life, so we also took the opportunity to replace it. Fortunately, Flexispot has several mattress options to pair with the Kana Japanese Joinery Bed, and the U-series is made in the USA.
- Milly Copper Gel Memory Foam: Available with a 10, 12, or 14-inch thickness
- U1: 10-inch Classic Hybrid Mattress
- U2: 12-inch Plus Hybrid Mattress
- U3: 13-inch Premier Hybrid Mattress

We went with the plushest optionโthe U3. It features 768 individually wrapped coils with a 2.2 PCF high-density foam layer on top and a medium to medium-firm feel. Hereโs a better breakdown of the construction from top to bottom:
- Polyester Top Layer: Wicks moisture, dispels heat, and fights odor-causing bacteria
- 2-inch Gel Memory Foam: Provides pressure relief for your neck, back, shoulders, and hips
- 2-inch Gel Foam: Responsive spinal support that promotes proper alignment
- Non-woven Fabric: Isolates the spring material to improve durability and comfort
- 8-inch Pocket Coils: Promotes airflow and responsive support while reducing motion transfer
- Non-woven Fabric: Isolates the spring material to improve durability and comfort
- 1-inch Eco Polyurethane Foam: Enhances motion isolation
- FR Stitch Bonded Non-woven: Enhances fire resistance using flame-retardant properties
Should You Buy It?
Todayโs economy is tough, and plenty of us are looking for high-value ways to improve our living experience. Thatโs what you get with Flexispotโs Kana Japanese Joinery Bed and mattresses. You can certainly find cheaper options out there. However, Flexispot balances quality and price, hitting a sweet spot that makes you feel like youโre getting a real upgrade but at a much better price than other brands.
I realize the Kana style might not be for everyone. For me, thatโs the only qualifier. The quality of the materials, ease of assembly, overall comfort, and price make it an easy recommendation. If the design fits the room mood youโre looking for, donโt think twice about pulling the trigger.
Pricing varies based on which options you choose. To give you some context, our build was $759.99 for the frame and headboard, plus $499.99 for the mattress. Thatโs well under what you would pay for similar quality from some brands.
