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Mattress Warehouse of Lake Ronkonkoma

Mattress Warehouse

Lake Ronkonkoma, NY

5(231 reviews)
11 active offers8 store perks
DLX Mattress advertisement. Buy direct from the mattress maker and save $500.

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About Mattress Warehouse

Mattress Warehouse is the largest independently owned mattress retailer in the U.S., operating over 500 locations nationwide. They offer a wide selection of mattresses and sleep accessories from top brands, providing customers with quality products at the best possible price. Their mission is to deliver a relaxed and educational buying process, ensuring the best overall sleep experience.

Current Promotions
Last updated Nov 1, 2026

Current homepage promotions include up to $1,500 off warehouse-wide, brand discounts up to 70%, 60%, and 30%, select free-base and mattress bundles, featured queen mattress prices, and 10% off for signing up for promotional texts.

  • Save up to $1,500 warehouse-wideWarehouse-wide
  • Save up to 70% on BeautyrestBeautyrest
  • Save up to 70% on SertaSerta
  • Save up to 60% on KingsdownKingsdown
  • Get a free adjustable base with select Sealy stylesSelect Sealy styles
  • Casper king size for queen priceCasper
  • Save up to 30% on HelixHelix
  • Serta Perfect Sleeper queen mattress for $599.99Queen size; Serta Perfect Sleeper
  • Serta iDirections queen mattress for $1,299.99Queen size; Serta iDirections
  • SomosBeds queen mattress for $499 with a free adjustable baseSomosBeds Restorative Medium; queen size
  • Save 10% when you sign up for promotional textsText NAP to 21048; marketing text-message consent and promotional alerts; message and data rates may apply
Purchase Incentives
  • Free in-home delivery and setup
  • Get 0% interest for 60 monthsPurchases of $5,999 or more; equal monthly payments required for 60 months
  • Locally owned
  • Trusted for over 30 years
  • Price match guarantee
  • Free delivery
  • Financing options
  • Sleep trial with bedMATCH system
Mattress Selection

Brands

Beautyrest
SomosBeds
Tempur-Pedic
Serta
Sealy
Kingsdown
Casper
Purple
Stearns & Foster
BEDGEAR
Aireloom
Cheswick Manor
Nectar
Smart Life by King Koil

Ideal for

adults
growing children
teens

Technology

Memory foam
Hybrid
Innerspring
Gel

Assortment

Mattresses
Box Springs & Adjustable Beds
Beds & Furniture
Bedding
Pillows
Sheets
Protectors

Price range

$
$$
$$$
$$$$

Price range not yet reported

What Your Neighbors Say

Real Google reviews from nearby shoppers

See all reviews

Average rating 5 · 231 reviews

Last updated Aug 27, 2026

Kate Lim· 5★ · 2026-07-17T20:18:11.934697332Z

We recently purchased the Helix Midnight Elite mattress, and we couldn't be happier with our experience! The mattress is incredibly comfortable, with the perfect balance of support and softness. A special thank you to Jamie, who made the entire process easy and enjoyable. He was knowledgeable, patient, and took the time to answer all of our questions. Best of all, he gave us a fantastic deal! We truly appreciate his excellent customer service and highly recommend asking for Jamie if you're shopping for a new mattress.

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Francis Villanea· 5★ · 2026-04-27T00:29:47.989776390Z

Jamie was excellent to work with from start to finish. He was knowledgeable, patient, and never made us feel pressured at any point in the process. He took the time to understand what we were looking for and helped guide us to the right mattress without trying to upsell or rush the decision. You can tell he really knows his stuff and genuinely wants to help customers get a good night’s sleep. The whole experience was smooth and easy because of him. Highly recommend asking for Jamie if you’re shopping at Mattress Warehouse!

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gary andreas· 5★ · 2026-07-07T20:42:50.092767022Z

When you buy a mattress from Jaime, you don’t just buy a mattress, you buy an experience. From a mattress finding program that fits you with the best mattress, to expert advice paired with comic relief. Jaime isn’t just a typical salesman looking for quick commission. He spends time helping you find the right mattress that you will love but also one that fits your budget. Customer service and hospitality at this store is unmatched. We got a great deal and while waiting for credit approval we were even graced with magic tricks and waffles. Yes, you read that right. If you’re in the market for a new mattress, there’s no point shopping around, just go here! You will not be sorry!

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Percy Underwood· 5★ · 2026-02-27T00:39:43.003664892Z

Jamie at the KONK is awesome! so funny and cool and a great sweater.. the bedmatch machine was amazing and i really hope everyone goes and experiences his expertise... best prices and it felt like home

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Tara Di Rico· 5★ · 2026-05-28T01:55:58.903057089Z

Jamie at Mattress Warehouse was absolutely wonderful to work with! He took his time helping me pick the right mattress and never made me feel rushed or pressured. He was extremely patient, knowledgeable, and answered all of my questions throughout the process. You can tell he genuinely cares about helping customers find what works best for them. I truly appreciated the great customer service and overall experience. I can’t wait to sleep on my new mattress! Highly recommend asking for Jamie if you visit Mattress Warehouse. -Rose

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