---
title: "Products — king size mattress 14+ inch - Flapen"
canonical_url: "https://flapen.com/research/us/home-kitchen/king-size-mattress-14-inch/products"
last_updated: "2026-08-11T15:52:26.518Z"
locale: en
meta:
  description: "Niche score 55/100 · $310K/yr market. Prices mostly outside the sweet spot ($119.61–$592.20) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 55/100 · $310K/yr market. Prices mostly outside the sweet spot ($119.61–$592.20) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Products — king size mattress 14+ inch - Flapen"
---

# **king size mattress 14+ inch**

**Worth a look**

Shows low returns (0.5%), but prices mostly outside the sweet spot ($119.61–$592.20) keeps it on the watch list.

Market size 52Growth 3Conversion 12Competition 95Returns 97Price range 0Avg price 31Brand share 96Review moat 68Quality gap 67

**Returns**

**Incredible****0.5%**

return rate — above 5% kills the launch gate

**Brand share**

**Incredible****34%**

top-5 brand share — no brand owns this niche

**Competition**

**Incredible****19%**

top-5 click share — an open shelf

**Review moat**

**Good****793.12**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Good****4.3★**

avg incumbent rating — lower means beatable quality

**Market size**

**Good****$310K**

$310K/yr · 106K searches

**Avg price**

**Okay****$298.51**

avg listing price — sweet spot $15–$100

**Conversion**

**Bad****1.0%**

search→purchase rate — share of searches ending in a sale

**Growth**

**Bad****-43.7%**

90-day search growth — must beat 0% to launch

**Price range**

**Bad****$119.61–$592.20**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50") [** Out of Stock**](https://flapen.com/research/niches?market=us&signal=out_of_stock "OOS rate > 10%")

## Products