Model assessment · Delta Children

Delta Children Essex Mini Crib with 2.75-Inch Mattress review

A mini-crib configuration with a manufacturer-listed 40.25-inch width, two mattress-support positions, an included 2.75-inch mini mattress and a separately equipped twin-bed conversion path. This is distinct from the full-size Essex 4-in-1 crib.

Sources checked 2026-11-03 · Our editorial approach

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Delta Children Essex W113550-1359 mini crib in Grey with Natural with the mattress installed, front view.
Manufacturer image; W113550-1359 Grey with Natural mini crib. Check the exact seller package and instructions. Delta Children manufacturer product image
A useful fit for

A candidate for a household specifically comparing mini cribs that include the maker-listed 2.75-inch mini mattress and can use a 40.25-inch listed outside width. The later documented route is to a twin bed with separate rails or frame, not to a full-size crib.

The main tradeoff

The 40.25-inch width is larger than several other reviewed mini cribs; no wheels, bassinet mode or full-size crib stage is documented. The included mini mattress is not a standard full-size crib mattress, and twin-bed rails/frame and twin mattress are separate. Match the physical crib label to its booklet and seller package.

Your needs, this model

Does it fit your priorities?

What maximum mini-crib width first admits the Essex W113550?

Delta lists the assembled width as 40.25 inches. A 40-inch ceiling excludes it; the next selectable half-inch ceiling, 40.5 inches, admits it. This is product width, not room or access clearance.

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Does the Essex W113550 include a mini-crib mattress?

Yes. Delta describes an included 2.75-inch mini mattress. Its linked instructions specify the manufacturer-provided sleep surface and minimum length/width and maximum thickness; confirm the exact seller package and booklet that matches the crib label.

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Does the W113550 include a standard full-size crib mattress?

No. The package described is a mini crib with an included mini mattress; a standard full-size crib mattress is not included or a documented mode. The separate later bed uses a twin mattress, also not included.

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Can the Essex Mini convert to a full-size crib later?

No full-size crib configuration is documented. Delta describes later twin-bed routes, but a twin bed is not a full-size crib stage.

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Do the reviewed W113550 mini-crib instructions document wheels?

No wheels are listed for the stationary mini-crib plan in the product page or linked instructions. Do not treat the furniture’s feet as casters or assume a seller-added component is approved.

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Delta Children’s Essex W113550 is a mini crib with a separately useful conversion path to a twin bed; it is not the full-size Essex 4-in-1 crib reviewed elsewhere in this library. The frozen U.S. Cribs row resolves to one mini-crib product record with two finish variants. I did not buy, assemble, own, measure or test the product, inspect its carton, or handle a physical manual. This is a source-based assessment of the manufacturer’s current product record and linked instructions.

Check the footprint before calling it compact

Delta lists the assembled mini crib at 40.25 inches wide, 26 inches deep and 34.75 inches high. That is still a long piece of furniture: the mini label does not mean it will fit a narrow alcove or pass through every doorway. In this finder’s half-inch product-width scale, a 40-inch maximum excludes W113550; 40.5 inches is the first selectable ceiling that admits its listed 40.25-inch width. Those numbers compare the crib’s outside dimension, not the room, access route, door swing or space needed to assemble and use it. Measure all of those separately, and recheck the exact finish-page dimensions and seller offer before planning a close fit.

The included surface is a mini-crib mattress

The product title and detail page say the package includes a 2.75-inch mini-crib mattress, and Delta describes that surface as water-resistant. The page says it takes 24-by-38-inch sheets; that sheet size should not be mistaken for a separate measurement of the mattress itself. The linked W113550 instructions say to use only the mattress supplied by Delta, give minimum surface dimensions of 37 7/8 by 23 7/8 inches and a maximum thickness of 6 inches, and warn against adding another mattress or padding. Match the instructions to the physical crib’s label and confirm that an exact seller bundle still includes the surface. A mini mattress is not a standard full-size crib mattress.

The maker’s product page links four assembly-booklet revisions—A, C, D and F—dated from 2020 through 2025. Their covers leave the product-identification fields blank, so the links do not establish which revision belongs with any particular crib. I compared the linked documents’ setup and warning sections, but did not inspect an in-box manual or crib-end label. Keep the label-matched instructions with the unit rather than assuming the newest linked revision is the correct one.

Two support positions and a clear crib stop point

The linked crib instructions show two mattress-support positions: use the highest only for a newborn and lower the support as the child grows; when the child can pull to standing, set the support at its lowest position. The manual says to discontinue crib use when the child can climb out or reaches 35 inches in height, whichever comes first. Those are the maker’s stop conditions, not a prediction of how long an individual child will use the crib. The product page does not document wheels, and none are shown for the reviewed mini-crib setup in the linked instructions; do not plan on rolling this crib from room to room.

The later twin bed requires a separate rail system

“Convertible” here refers to later twin-bed arrangements, not a transition into a full-size crib. Delta’s page describes a twin bed with a headboard and footboard or a twin bed with a headboard only. In the linked manual, the W0090 conversion rails are used for the headboard-and-footboard arrangement; a separate Style 0040 frame is identified for the headboard-only route. The bed-rail system is not included, and the page also tells buyers to provide a separate twin mattress. Confirm the exact compatible rail or frame, its availability and instructions before treating the future bed as part of the purchase plan. A later twin bed does not meet a requirement for a full-size crib stage.

Where it fits in a mini-crib comparison

The Essex Mini’s maker-listed 40.25-inch width is substantially larger than the 25.25-inch Charlie M12898 and Dylan M18198 mini cribs or the 25.5-inch Otto M22598 and Colby F11981 models in this library. Those are different products with their own surface requirements and conversion parts; their dimensions and manuals do not transfer to the W113550. The Essex Mini’s useful distinction is an included 2.75-inch mini mattress plus an explicitly described twin-bed route. That package is less attractive if a very narrow outside width is essential, if wheels are required, or if the purchase must include a standard full-size mattress or a later full-size crib configuration.

Finishes and claims to verify

The manufacturer’s product-data record groups Grey with Natural W113550-1359 (UPC 080213105105) and Bianca White with Natural W113550-123 (UPC 080213105099) under product 6206298751176. The two variants are shown as finish choices on the exact product pages; no finish-dependent function or dimension difference is established in the reviewed material. The photograph above depicts only Grey with Natural W113550-1359, not the white variant or a twin-bed conversion. Delta describes the frame as New Zealand pine and poplar, identifies the crib as GREENGUARD Gold certified and says it is tested for lead and other toxic elements to meet or exceed government and ASTM standards. These remain manufacturer claims here, not independent material analysis, certificate verification or test results.

The narrow SaferProducts.gov ProductName=W113550 query saved for this review returned an empty response. That limited keyword result is not recall clearance, especially for a used unit whose label, model or lot details may differ. Verify the crib’s identity, condition, included mattress, required conversion parts and label-matched booklet before buying or using it.

Bottom line: W113550 is a mini crib with a maker-listed 40.25-inch width, two support positions, an included mini mattress and a separately equipped twin-bed path. It is not the full-size Essex crib, a full-size-crib conversion system or a wheeled setup. Its outside width, mattress requirements and missing conversion rails are the practical checks that should decide whether it belongs on a shortlist.

Key specifications

Key details at a glance

Full-size crib mattress includedNo

Use the exact model’s instructions for operating limits, supplied equipment and version differences.

Sources for this review

Sources for this assessment

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